Artículos científicos: Envíos recientes
Mostrando ítems 101-120 de 286
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Evenness mediates the global relationship between forest productivity and richness
(British Ecological Society, 2023-06-07)1. Biodiversity is an important component of natural ecosystems, with higher species richness often correlating with an increase in ecosystem productivity. Yet, this relationship varies substantially across environments, ... -
Pasture and grassland productivity and foliar elongation of wheatgrass in Southern Patagonia = Productividad de pastura y pastizal y elongación foliar de agropiros en la Patagonia austral = Produtividade pastagem e pasto natural e alongamento foliar de agropyros no Sul da Patagônia
(INIA Uruguay y Facultad de Agronomía, Universidad de la República, 2023-07-28)The aim of this work was to show the relationship of the productivity of a pasture and grassland, the living and dead material, and the foliar elongation of wheatgrass with the soil moisture and the thermal sum in Southern ... -
Seed fall and leaf litter relationships in Nothofagus pumilio forests: changes according to retention levels and years after harvesting
(Springer, 2023-04)Seed fall and leaf litter influence forest regeneration, nutrient cycling, and other key ecological processes closely related to forest management. In Patagonian forests, variation of both managed and unmanaged forests ... -
Radial growth response to long-term thinning strategies in Nothofagus pumilio forests of Tierra del Fuego = Respuesta del crecimiento radial a estrategias de raleo de largo plazo en bosques de Nothofagus pumilio de Tierra del Fuego
(Faculty of Forest Sciences and Natural Resources, Austral University of Chile, 2023)New silvicultural proposals based on long-term trials are needed to develop forest management strategies. Radial growth response was the preferred proxy for managers to define thinning levels and best years for intervention. ... -
Environmental heterogeneity modulates the effect of plant diversity on the spatial variability of grassland biomass
(Springer Nature, 2023-03-31)Plant productivity varies due to environmental heterogeneity, and theory suggests that plant diversity can reduce this variation. While there is strong evidence of diversity effects on temporal variability of productivity, ... -
Differential responses of soil microorganisms to precipitation changes in austral semiarid grasslands
(Elsevier, 2023-06)Global climate models predict that precipitation regimes will change, generating great impacts on various ecosystem processes and functions. Therefore, it is important to know how drought and precipitation increases would ... -
Isotope geochemistry as a natural tag of fish in Patagonian freshwater environments: the invasive Chinook salmon case
(Elsevier, 2023-05-15)Patagonian aquatic environments have been invaded since the end of the last century by different species of salmonids.Knowing the natal origin and homing/straying rate of the salmonids in colonised environments is essential ... -
Silvopastoral use of Nothofagus antarctica forests in Patagonia: impact on soil microorganisms
(Springer, 2022-09-06)Soil microorganisms contribute to soil carbon storage, soil respiration and nutrient cycling. In south Patagonia, there are scarce studies on carbon (C) and nitrogen (N) in soil microbial biomass (MB). The aim of this work ... -
Climate regionalization of Santa Cruz province, Argentina
(Universidad Nacional Autónoma de México (UNAM), 2023-02-17)La regionalización climática es esencial para la caracterización espacial y temporal de la variabilidad del clima, la producción de pronósticos meteorológicos y el análisis de tendencias a diferentes escalas, así como la ... -
Carbon pool dynamics after variable retention harvesting in Nothofagus pumilio forests of Tierra del Fuego
(Springer Nature, 2023-01-23)Background It is necessary to determine the implications for managing forest stands using variable retention harvesting for maintaining carbon and for calculating the effects of different harvesting practices on above‑ and ... -
Leaf wettability, anatomy and ultra-structure of Nothofagus antarctica and N. betuloides grown under a CO2 enriched atmosphere
(Elsevier, 2023-01)Increasing CO2 air concentration may affect wettability, anatomy and ultra-structure of leaves of Patagonian forest species, evergreen and deciduous plants potentially responding differently to such CO2 increases. In this ... -
Linking changes in species composition and biomass in a globally distributed grassland experiment
(Wiley, 2022-11-24)Global change drivers, such as anthropogenic nutrient inputs, are increasing globally. Nutrient deposition simultaneously alters plant biodiversity, species composition and ecosystem processes like aboveground biomass ... -
Evaluación de la calidad nutricional en pasturas de gramíneas perennes relacionada con el estado fenológico y el ambiente en el Sur de Santa Cruz
(Universidad Nacional de la Patagonia Austral, 2022-09-30)En la Patagonia Austral la introducción de pasturas destinadas al uso estratégico en las áreas de mayor potencial representa una alternativa de manejo que permitiría aumentar la productividadde los sistemas ganaderos ... -
Composition and Spatial Variation of Germinable Seed Bank in Burned Nothofagus pumilio Forests in Patagonia Argentina
(MDPI, 2022-11-12)The availability of soil-stored seed determines initial plant functional types in post-fire landscapes. We evaluated the post-fire regeneration of Nothofagus pumilio forests, in Patagonia, Argentina, analyzing the soil ... -
Nitrogen but not phosphorus addition affects symbiotic N2 fixation by legumes in natural and semi‑natural grasslands located on four continents
(Springer Nature, 2022-09)The amount of nitrogen (N) derived from symbiotic N2 fixation by legumes in grasslands might be affected by anthropogenic N and phosphorus (P) inputs, but the underlying mechanisms are not known. Methods We evaluated ... -
Relación entre índices de sequía usando datos meteorológicos y satelitales, en la estepa magallánica seca (Patagonia)
(Facultad de Ciencias Económicas, Universidad de Buenos Aires, 2022-04)Los efectos de la sequía impactan en el sector productivo de las distintas regiones, incidiendo en la vegetación, la disponibilidad de agua y las consecuencias que ello ocasiona, por lo que resulta de interés el estudio ... -
Co-limitation toward lower latitudes shapes global forest diversity gradients
(Springer Nature, 2022-08-08)The latitudinal diversity gradient (LDG) is one of the most recognized global patterns of species richness exhibited across a wide range of taxa. Numerous hypotheses have been proposed in the past two centuries to explain ... -
Biomass, carbon and nutrient storage for dominant grasses of cold temperate steppe grasslands in southern Patagonia, Argentina
(Elsevier, 2010-01)We hypothesized that different dominant grasses species display contrasting nutrient accumulation, allocation and conservation strategies. Also, we expect a distinctive pattern of carbon and biomass partitioning according ... -
Changes in forest structure modify understory and livestock occurrence along the natural cycle and different management strategies in Nothofagus antarctica forests
(Springer Nature, 2022-08-17)Sustainable forest management is proposed as a solution for many ecological and socioeconomic trade-offs associated with different forest uses. In Patagonia, silvopastoral systems were proposed to balance provisioning ... -
Conceptual framework to define management strategies for silvopastoral systems in native forests
(Asociación Argentina de Ecología., 2022-08-25)Most of the native forests in Argentina are used for livestock production with little sustainable silvopastoral management. Our objective here is to discuss different management strategies where natural and human capital ...